Nonstop flight route between Alton, Illinois, United States and Da Nang, Vietnam:

About this route:

A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Đà Nẵng International Airport (DAD), Da Nang, Vietnam would travel a Great Circle distance of 8,462 miles (or 13,618 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between St. Louis Regional Airport and Đà Nẵng International Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between St. Louis Regional Airport and Đà Nẵng International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about St. Louis Regional Airport (ALN):

• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• In the spring of 2004 the airport was at the center of a scandal.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
• West Star Aviation is the largest fixed base operations company at the airport.
• St. Louis Regional Airport (ALN) has 2 runways.
• The 2,250 acres airfield sits at 544 ft MSL.

Facts about Đà Nẵng International Airport (DAD):

• In 1955, the newly established Republic of Vietnam Air Force inherited from the French a token force of fifty-eight aircraft.
• In addition to being known as "Đà Nẵng International Airport", another name for DAD is "Sân bay Quốc tế Đà Nẵng".
• TransAsia Airways started service between Taipei and Da Nang in December 2009, and China Southern Airlines began service between Guangzhou and Da Nang in January 2010.
• The furthest airport from Đà Nẵng International Airport (DAD) is Rodríguez Ballón International Airport (AQP), which is nearly antipodal to Đà Nẵng International Airport (meaning Đà Nẵng International Airport is almost on the exact opposite side of the Earth from Rodríguez Ballón International Airport), and is located 12,412 miles (19,975 kilometers) away in Arequipa, Peru.
• In addition to its civil aviation, the runway is shared with the Vietnamese People's Air Force, although military activities are now extremely limited.
• The closest airport to Đà Nẵng International Airport (DAD) is Phu Bai International Airport (HUI), which is located 41 miles (66 kilometers) NW of DAD.
• Because of Đà Nẵng International Airport's relatively low elevation of 33 feet, planes can take off or land at Đà Nẵng International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• Đà Nẵng International Airport (DAD) has 2 runways.
• A new 20,000m² terminal, costing USD $84 million with a capacity of 4 million passengers per year, opened to receive its first domestic flight on 15 December.